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Plastic debris and microplastics along the beaches of the Strait of Hormuz, Persian Gulf

Marine Pollution Bulletin 2016 199 citations ? Citation count from OpenAlex, updated daily. May differ slightly from the publisher's own count.
Abolfazl Naji, Zinat Esmaili, Farhan R. Khan

Summary

Researchers surveyed microplastic abundance along beaches of the Strait of Hormuz in the Persian Gulf, finding concentrations that reflected local anthropogenic activity levels — up to 1,258 particles per kg at the most industrialized site — with fibers dominating and polyethylene, nylon, and PET as the most common polymers.

Study Type Environmental

Currently little is known about the prevalence of plastics and microplastics (MPs) in the Persian Gulf. Five sampling stations were selected along the Strait of Hormuz (Iran) that exhibited different levels of industrialization and urbanization, and included a marine protected area. Debris was observed and sediments were collected for MPs extraction via fluidization/floatation methodology. The order of MP abundance (par/kg) generally reflected the level of anthropogenic activity: Bostanu (1258±291)>Gorsozan (122±23)>Khor-e-Yekshabeh (26±6)>Suru (14±4)>Khor-e-Azini (2±1). Across all sites fibers dominated (83%, 11% film, 6% fragments). FT-IR analysis showed polyethylene (PE), nylon, and PET (polyethylene terephthalate) were the commonly recovered polymers. Likely sources include beach debris, discarded fishing gear, and urban and industrial outflows that contain fibers from clothes. This study provides a 'snapshot' of MP pollution and longitudinal studies are required to fully understand plastic contamination in the region.

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